3319W-1-253

Trimmer Potentiometers

A trimmer potentiometer, also known as a trim pot, is a three terminal adjustable resistor with a wiper contact that is used to set a specific resistor value in a circuit. They are used in a variety of industries, including telecommunications, telecommunications test and measurement, and industry automation.

The 3319W-1-253 trimmer potentiometer is a popular choice for many applications. It is a mini SMD (Surface Mount Device) trimmer with easily adjustable resistance values and is available in a range of tolerance levels from 0.5% to 30%. It also has a wide adjustment range and a low profile. The 3319W-1-253 has a footprint of only 2.5mm x 3.5mm, making it ideal for use in compact spaces. It is also RoHS compliant.

Application Field of 3319W-1-253

The 3319W-1-253 is perfect for a variety of applications, such as:

• Volume and tone control
• Resistance adjustable in oscillator and filter circuits
• Reference voltage trimming
• ADC and DAC reference voltage trimming
• Amplifier gain trimming
• Sensitivity adjustment in sensors
• LCD contrast trimming

Working Principle of 3319W-1-253

A trimmer potentiometer works on the same principle as a variable resistor, but has only two electrical connections. The resistance between the two contacts is changed by moving a wiper, which is the third terminal. The wiper position determines the resistance between the two contacts. The wiper moves a distance dependent on the applied input voltage, which sets the resistance of the trimmer potentiometer.

The 3319W-1-253 features an easy to use adjustment mechanism, which allows for quick and repeatable adjustment of the resistance value. The amount of adjustment is determined by the number of steps, which is adjustable. The adjustment is then applied by turning the adjustment screw, and the resistance can be changed as needed.

The 3319W-1-253 is also equipped with a lock nut, which prevents accidental adjustment when in use. The lock nut is opened by turning it counter-clockwise and adjustments can be made once it is opened. The lock nut is then turned clockwise to lock the current setting in place.

Conclusion

The 3319W-1-253 trimmer potentiometer is an effective and reliable solution for setting a specific resistance value in circuit, and is suitable for a wide range of applications. Its low profile, compact size and adjustable resistance make it ideal for use in tight spaces. It is also RoHS compliant, and features an easy to use adjustment mechanism with a lock nut.